From: Stephen Hemminger <stephen@networkplumber.org>
To: Ferruh Yigit <ferruh.yigit@amd.com>
Cc: dev@dpdk.org, Luca Boccassi <bluca@debian.org>
Subject: Re: [PATCH v4 4/7] net/tap: rewrite the RSS BPF program
Date: Fri, 9 Feb 2024 18:09:48 -0800 [thread overview]
Message-ID: <20240209180948.1fc905ee@hermes.local> (raw)
In-Reply-To: <dd71eebb-1cfc-4c4a-8ff5-246b709c5247@amd.com>
On Sat, 10 Feb 2024 00:54:15 +0000
Ferruh Yigit <ferruh.yigit@amd.com> wrote:
> On 2/8/2024 7:05 PM, Stephen Hemminger wrote:
> > Rewrite the BPF program used to do queue based RSS.
> > Important changes:
> > - uses newer BPF map format BTF
> > - accepts key as parameter rather than constant default
> > - can do L3 or L4 hashing
> > - supports IPv4 options
> > - supports IPv6 extension headers
> > - restructured for readability
> >
> > The usage of BPF is different as well:
> > - the incoming configuration is looked up based on
> > class parameters rather than patching the BPF.
> > - the resulting queue is placed in skb rather
> > than requiring a second pass through classifier step.
> >
> > Note: This version only works with later patch to enable it on
> > the DPDK driver side. It is submitted as an incremental patch
> > to allow for easier review. Bisection still works because
> > the old instruction are still present for now.
> >
> > Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
>
> <...>
>
> > diff --git a/drivers/net/tap/bpf/meson.build b/drivers/net/tap/bpf/meson.build
> > new file mode 100644
> > index 000000000000..f2c03a19fd4d
> > --- /dev/null
> > +++ b/drivers/net/tap/bpf/meson.build
> > @@ -0,0 +1,81 @@
> > +# SPDX-License-Identifier: BSD-3-Clause
> > +# Copyright 2024 Stephen Hemminger <stephen@networkplumber.org>
> > +
> > +enable_tap_rss = false
> > +
> > +libbpf = dependency('libbpf', required: false, method: 'pkg-config')
> > +if not libbpf.found()
> > + message('net/tap: no RSS support missing libbpf')
> > + subdir_done()
> > +endif
> > +
> > +# Debian install this in /usr/sbin which is not in $PATH
> > +bpftool = find_program('bpftool', '/usr/sbin/bpftool', required: false, version: '>= 5.6.0')
> > +if not bpftool.found()
> > + message('net/tap: no RSS support missing bpftool')
> > + subdir_done()
> > +endif
> >
>
> I am getting following build error:
> '
> drivers/net/tap/bpf/meson.build:13:10: ERROR: Command `/usr/sbin/bpftool
> --version` failed with status 2.
> '
>
> There is a '/usr/sbin/bpftool' file but it is a script and gives
> following message when run:
> "WARNING: bpftool not found for kernel 6.5.0-15"
>
> This is with "Ubuntu 22.04.3 LTS"
>
>
> Overall thanks for fixing tap BPF support.
Just set up an equivalent Ubuntu VM 22.04 VM and made sure all packages
were up to date.
Looks like Ubuntu borked the packaging of bpftool.
Maybe Luca has some insight.
shemminger@ubuntu-22-04:~/dpdk$ sudo apt install libbpf-dev bpftool
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package bpftool is a virtual package provided by:
linux-nvidia-6.2-tools-common 6.2.0-1003.3~22.04.1
linux-lowlatency-hwe-6.5-tools-common 6.5.0-17.17.1.1.1~22.04.1
linux-hwe-6.5-tools-common 6.5.0-17.17~22.04.1
linux-hwe-6.2-tools-common 6.2.0-39.40~22.04.1
You should explicitly select one to install.
next prev parent reply other threads:[~2024-02-10 2:09 UTC|newest]
Thread overview: 202+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-30 3:46 [RFC 0/2] net/tap RSS BPF rewrite Stephen Hemminger
2024-01-30 3:46 ` [RFC 1/2] tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-01-30 3:46 ` [RFC 2/2] tap: rework BPF handling Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 0/7] net/tap: RSS using BPF overhaul Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 1/7] net/tap: remove unused RSS hash types Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 2/7] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 3/7] net/tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 4/7] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 5/7] net/tap: use libbpf to load new " Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 6/7] net/tap: remove no longer used files Stephen Hemminger
2024-02-07 22:11 ` [PATCH v2 7/7] MAINTAINERS: add maintainer for TAP device Stephen Hemminger
2024-02-08 7:01 ` Morten Brørup
2024-02-08 17:41 ` [PATCH v3 0/7] net/tap: RSS using BPF overhaul Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 1/7] net/tap: remove unused RSS hash types Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 2/7] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 3/7] tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 4/7] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 5/7] net/tap: use libbpf to load new " Stephen Hemminger
2024-02-08 18:02 ` Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 6/7] net/tap: remove no longer used files Stephen Hemminger
2024-02-08 17:41 ` [PATCH v3 7/7] MAINTAINERS: add maintainer for TAP device Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 0/7] net/tap: queue flow action RSS using BPF redo Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 1/7] net/tap: remove unused RSS hash types Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 2/7] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 3/7] tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 4/7] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-02-10 0:54 ` Ferruh Yigit
2024-02-10 2:09 ` Stephen Hemminger [this message]
2024-02-28 17:27 ` Ferruh Yigit
2024-02-29 23:39 ` Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 5/7] net/tap: use libbpf to load new " Stephen Hemminger
2024-02-08 20:39 ` Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 6/7] net/tap: remove no longer used files Stephen Hemminger
2024-02-08 19:05 ` [PATCH v4 7/7] MAINTAINERS: add maintainer for TAP device Stephen Hemminger
2024-02-12 16:47 ` [PATCH v4 0/7] net/tap: queue flow action RSS using BPF redo Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 0/8] net/tap: cleanups and fix BPF flow Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 2/8] doc: fix the requirements and building of TAP flow Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 3/8] net/tap: remove unused RSS hash types Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 4/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 5/8] net/tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 6/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-02 17:12 ` [PATCH v5 7/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-03 11:50 ` Luca Boccassi
2024-04-03 14:53 ` Stephen Hemminger
2024-04-03 15:55 ` Stephen Hemminger
2024-04-03 21:19 ` Luca Boccassi
2024-04-03 23:41 ` Stephen Hemminger
2024-04-04 0:49 ` Luca Boccassi
2024-04-04 15:51 ` Stephen Hemminger
2024-04-04 16:12 ` Luca Boccassi
2024-04-04 15:30 ` Stephen Hemminger
2024-04-04 16:11 ` Luca Boccassi
2024-04-02 17:12 ` [PATCH v5 8/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-02 20:43 ` Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 0/8] net/tap: cleanup and fix BPF flow support Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 2/8] doc: fix the requirements and building of TAP flow Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 3/8] net/tap: remove unused fields Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 4/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 5/8] net/tap: stop "vendoring" linux bpf headers Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 6/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-05 21:14 ` [PATCH v6 7/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-05 21:15 ` [PATCH v6 8/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 0/8] net/tap: cleanups and fix BPF support Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 2/8] net/tap: remove unused fields Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 3/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 4/8] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 5/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 6/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 7/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-08 21:18 ` [PATCH v7 8/8] doc: update documentation of TAP PMD Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 0/8] net/tap: cleanups and fix BPF support Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 1/8] net/tap: do not duplicate fd's Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 2/8] net/tap: remove unused fields Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 3/8] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 4/8] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 5/8] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 6/8] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 7/8] net/tap: remove no longer used files Stephen Hemminger
2024-04-09 3:40 ` [PATCH v8 8/8] doc: update documentation of TAP PMD Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 0/9] net/tap: fix RSS (BPF) support Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 1/9] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-01 11:13 ` Ferruh Yigit
2024-05-01 23:53 ` Stephen Hemminger
2024-05-02 14:51 ` Ferruh Yigit
2024-05-02 16:22 ` Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 2/9] net/tap: remove unused fields Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 3/9] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 4/9] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 5/9] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-01 11:14 ` Ferruh Yigit
2024-04-26 15:48 ` [PATCH v9 6/9] net/tap: use libbpf to load new " Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 7/9] net/tap: remove no longer used files Stephen Hemminger
2024-04-26 15:48 ` [PATCH v9 8/9] doc: update documentation of TAP PMD Stephen Hemminger
2024-05-01 12:36 ` Ferruh Yigit
2024-04-26 15:48 ` [PATCH v9 9/9] net/tap: simplify the internal structure Stephen Hemminger
2024-05-01 11:18 ` [PATCH v9 0/9] net/tap: fix RSS (BPF) support Ferruh Yigit
2024-05-01 15:41 ` Stephen Hemminger
2024-05-01 16:11 ` [PATCH v10 0/9] net/tap: fix RSS (BPF) flow support Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 1/9] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 2/9] net/tap: remove unused fields Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 3/9] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 4/9] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 5/9] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 6/9] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 7/9] net/tap: remove no longer used files Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 8/9] net/tap: simplify internals Stephen Hemminger
2024-05-01 16:12 ` [PATCH v10 9/9] net/tap: update documentation Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 0/9] net/tap fix RSS (BPF) flow support Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 1/9] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 2/9] net/tap: remove unused fields Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 3/9] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 4/9] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 5/9] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 6/9] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 7/9] net/tap: remove no longer used files Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 8/9] net/tap: simplify internals Stephen Hemminger
2024-05-02 2:49 ` [PATCH v11 9/9] net/tap: update documentation Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 00/12] net/tap: RSS and other fixes Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 01/12] net/tap: fix fd check in flow_isolate Stephen Hemminger
2024-05-20 17:46 ` Ferruh Yigit
2024-05-02 21:31 ` [PATCH v12 02/12] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-20 17:46 ` Ferruh Yigit
2024-05-20 18:16 ` Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 03/12] net/tap: remove unused fields Stephen Hemminger
2024-05-20 17:46 ` Ferruh Yigit
2024-05-02 21:31 ` [PATCH v12 04/12] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-20 17:47 ` Ferruh Yigit
2024-05-21 2:01 ` Stephen Hemminger
2024-05-21 14:17 ` Ferruh Yigit
2024-05-02 21:31 ` [PATCH v12 05/12] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-20 17:47 ` Ferruh Yigit
2024-05-02 21:31 ` [PATCH v12 06/12] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 07/12] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-20 17:49 ` Ferruh Yigit
2024-05-20 18:18 ` Stephen Hemminger
2024-05-20 21:42 ` Luca Boccassi
2024-05-20 22:08 ` Ferruh Yigit
2024-05-20 22:25 ` Luca Boccassi
2024-05-20 23:20 ` Stephen Hemminger
2024-05-20 22:06 ` Ferruh Yigit
2024-05-21 4:23 ` Patrick Robb
2024-05-21 13:46 ` Ferruh Yigit
2024-05-21 14:33 ` Patrick Robb
2024-05-21 15:06 ` Aaron Conole
2024-05-21 15:41 ` Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 08/12] net/tap: remove no longer used files Stephen Hemminger
2024-05-20 17:50 ` Ferruh Yigit
2024-05-02 21:31 ` [PATCH v12 09/12] net/tap: simplify internals Stephen Hemminger
2024-05-20 17:51 ` Ferruh Yigit
2024-05-21 15:44 ` Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 10/12] net/tap: remove extraneous newlines Stephen Hemminger
2024-05-20 17:51 ` Ferruh Yigit
2024-05-02 21:31 ` [PATCH v12 11/12] net/tap: do not mark queue full as error Stephen Hemminger
2024-05-20 17:52 ` Ferruh Yigit
2024-05-21 15:46 ` Stephen Hemminger
2024-05-02 21:31 ` [PATCH v12 12/12] net/tap: update documentation Stephen Hemminger
2024-05-20 17:53 ` Ferruh Yigit
2024-05-21 2:39 ` Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 00/11] net/tap: make RSS work again Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 01/11] net/tap: fix fd check in flow_isolate Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 02/11] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 03/11] net/tap: remove unused fields Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 04/11] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 05/11] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 06/11] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 07/11] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 08/11] net/tap: remove no longer used files Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 09/11] net/tap: simplify internals Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 10/11] net/tap: remove extraneous newlines Stephen Hemminger
2024-05-21 2:47 ` [PATCH v13 11/11] net/tap: update documentation Stephen Hemminger
2024-05-21 14:19 ` [PATCH v13 00/11] net/tap: make RSS work again Ferruh Yigit
2024-05-21 14:35 ` Ferruh Yigit
2024-05-21 14:38 ` Ferruh Yigit
2024-05-21 21:23 ` Patrick Robb
2024-05-21 21:26 ` Ferruh Yigit
2024-05-21 17:06 ` [PATCH v14 " Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 01/11] net/tap: fix fd check in flow_isolate Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 02/11] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 03/11] net/tap: remove unused fields Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 04/11] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 05/11] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 06/11] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 07/11] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 08/11] net/tap: remove no longer used files Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 09/11] net/tap: simplify internals Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 10/11] net/tap: remove extraneous newlines Stephen Hemminger
2024-05-21 17:06 ` [PATCH v14 11/11] net/tap: update documentation Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 00/11] net/tap: make RSS work again Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 01/11] net/tap: fix fd check in flow_isolate Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 02/11] net/tap: do not duplicate fd's Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 03/11] net/tap: remove unused fields Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 04/11] net/tap: validate and setup parameters for BPF RSS Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 05/11] net/tap: do not build flow support if header is out of date Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 06/11] net/tap: rewrite the RSS BPF program Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 07/11] net/tap: use libbpf to load new " Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 08/11] net/tap: remove no longer used files Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 09/11] net/tap: simplify internals Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 10/11] net/tap: remove extraneous newlines Stephen Hemminger
2024-05-21 20:12 ` [PATCH v15 11/11] net/tap: update documentation Stephen Hemminger
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